Score moistening device



Aug. 3, 1965 H. F. KORAN SCORE MOISTENING DEVICE Filed April 1, 1963 INVENTOR 1 /6. 4 H000 F KORAN BY KTORNEY United States Patent 3,198,092 SCGRE MOISTENING DEVBCE Hugo F. Koran, 301 Dionne Ave, St. Paul, Minn. Filed Apr. 1, H63, Ser. No. 269,350

3 (Jlaims. (Cl. 93-58) This invention relates to an improvement in score moistening apparatus and deals particularly with an attachment for sheet folding apparatus designed to moisten the surface of one or more scoring rollers so that the "sheets may be moistened in the areas of the scores to produce more effective and more accurate folding of the sheets.

Folding machines which are designed to apply score lines to paper or paperboard sheets and to fold the sheets along these fold lines have been produced for many years. With some types of paper, difiiculty is experienced in folding the sheets accurately, and folding the sheets without cracking the paper at the line of fold. In many instances, the quality of the fold can be greatly improved by moistening the sheets along the score lines. It is an object of the present invention to provide a simple and effective means of accomplishing this result.

Attempts have been made to apply moisture t a surface of the sheet in alignment with the creasing rollers in order to soften the sheet in these specific areas. Such an apparatus is often impractical, as the moisture applying means must engage the surface of the sheet, causing a likelihood of smearing the printed surface of the sheet j the moistened area to the width of the area being creased.

It is an object of the present invention to provide a score moistening apparatus which applies moisture only to the narrow area of the sheet being creased and which are deformed by the creasing operation.

An object of the present invention resides in the provision of a sheet moistening apparatus which applies moisture to the surface of a creasing roller. As the creasing roller rotates, it carries the moisture to the actual area of the sheet being creased, thereby requiring a minimum of moisture. If desired, the moisture may be carried directly into the score by the creasing or scoring roller thereby effectively moistening the specific area being deformed,

These and other objects and novel features of the pres ent invention will be more clearly and fully set forth in the following specification and claims.

In the drawings forming a part of the specification:

FIGURE 1 is an elevational view of a portion of the folding machine showing the general arrangement of the parts therein.

FIGURE 2 is a vertical sectional view, through a portion of the apparatus shown in FIGURE 1, showing the general arrangement of parts therein.

FIGURE 3 is an enlarged view of a pair of cooperable scoring rollers showing the manner in which moisture may be applied thereto.

FIGURE 4 is an enlarged sectional view through a brush handle showing the bristle arrangement used therein.

FIGURE 5 is a detailed view showing the manner in which a brush may be used to apply moisture to a scoring roller having a peripherally projecting creasing blade.

FIGURE 6 is a view similar to FIGURE 5 showing the manner in which moisture may be applied to a modified form of creasing blade.

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In view of the fact that various types of sheet folding devices have been produced for many years, this apparatus is not illustrated in detail in the drawings. The applicants sheet moistening device was originally applied to a Baum Folder manufactured by the Russell Ernest Baum Inc. of Philadelphia, Pennsylvania. These folders vary in type and form to a considerable extend depending upon the folding operation which is to be accomplished. However, in general, the devices include a frame 10 which supports a pair of parallel shafts Ill and 12 which may be rotated in unison in opposite directions by any suitable drive mechanism. Sheets are conveyed between the shafts II and 12 by suitable conveying mechanism, not illustrated in the drawings. Creasing rollers or scorers are adjustably mounted upon the shafts 11 and I2, and these rollers vary quite considerably depending upon the job to be accomplished. For example, one shaft may support a male scoring roller including a peripheral blade or flange designed to engage a surface of the sheet while the other shaft may support a cooperable roller having a resilient surface into which the sheet may be pressed to form the crease line. Alternatively, the male scoring blade may be used in combination with a female scoring roller having a grooved surface or may deform the sheet between a pair of spaced cooperable rollers. Further explanation is believed unnecessary in view of the fact that creasing rolls are in general well known in the art.

The frame It of the apparatus usually includes a pair of side plates such as 13 which are connected by cross braces or brackets such as 15 and 16. A liquid reservoir 17 is supported substantially above the level of the shafts II and I2 by suitable brackets 19. The reservoir 17 may be provided with a vented filling opening or cap, not illustrated in the drawings, or may be supplied with liquid by means of a flexible tube 20 leading from a suitable water supply. The tube 20 is connected to a valve such as 21 controlled by a float 22 which holds the liquid level within the reservoir at a predetermined elevation.

A series of fittings 23 are provided in the bottom of the reservoir which are preferably controlled by valves such as 24. If peferred, the valves may be omitted and the fittings 23 may be connected directly to flexible tubes such as 25, and these tubes may be provided with tube clamps capable of closing oif the flow of fluid by pinching the tube. The lower ends of the tubes 25 are connected to hollow brush handles 26 which are designed to receive fluid from the reservoir through the tubes 25. Flexible supports such as 27 are secured at one end to the handles 26 and are adjustably connected to the frame in a desired position. In the drawings, clamps 29 are illustrated which may be adjusted transversely of the frame along the cross bar 16 so as to support the handles 26 in a desired position.

FIGURE 4 of the drawings shows a fountain brush which has been used to accomplish the result, The tubular handle 26 is provided with a tapered lowered end 30 terminating in a substantially cylindrical sleeve 31. The brush which is indicated in genera-l by the numeral 32 includes a series of bristles 33 which are centrally encircled by a ferrule or sleeve 34. One end 35 of bristle structure is shaped to provide a relatively wide brush end. The opposite ends 36 of the bristles are trimmed to a relatively fine point 37. The sleeve 34 is frictionally engaged in the sleeve 31 and the brush 32 is reversible so that either end of the brush may be outermost. A funnelshaped drip guard 39 has its smaller diameter end 46 secured encircling the hollow body of the handle 26, and may be frictionally engaged thereon if adjustment is desired. The large diameter end 41 of the drip guard 39 terminates short of the exposed ends of the bristles forming the brush structure.

When the brush is arranged as illustrated in FIGURE 4, the relatively wide end 35 may be arranged to contact both of 'thesides of thelperipheral flange 42 projectingv from the hub 43 of the male scoring roller 44, With this arrangement, both of these opposed sides as well asthe periphery of the blade 42 is moistened, and the moisture is usually held near the peripherylof the 'blade 'sheet being creased and deformed by the creasing blade.

FIGURES 1 and 2 of the drawings show the creasing blade 42 used in conjunction with a roller such as 45 having a grooved periphery such as 46., Alternatively, the blade may cooperate witha resilient roller 47 as indicated in FIGURE 5 of the drawings. Both such types of rollers are old in the art. a

I In some instances it is desired torever'se the creasing. roller so that the male blade 42'is on the lower shaft 12,

and the female creasing roller 47 is on the upper shaft 11. In this event it is posssible to moisten the upper surface of' the sheet as they pass between the rollers by' applying the pointed end 37 of the smaller end 36 of the brush 32 against the surface of the female roller 47. In this way, a fine stripe of moisture is applied to the roller 47 and transferred to theupper surface of the sheet directly opposite the area being deformed'by the "scoring blade 42, as in the, other case,'the water is applied to the affected area which is being deformed during the scoring operation; r I

If it isdesired to apply a greater amount of water to 'the sheet than would normallybe applied inthe manner I described, grooves may be provided in the exterior surblade retaining nut 50 on eachside of the'scoring blade Similar grooves may be provided in the periphery of the female roller on opposite sides of the 1 point of engage ment with the male creasing blade if it is desired to main,-

tain a greater amount of moisture on the male roller. I V i In view of the fact that moisture can be applied either to the male creasing roller or the female jcreasing roller,

the term roller has been used to describe both of these elements. A very accurate quantity of liquid can be applied to'either roller in the manner described.

face of the scoring roller to accommodate 1a greater amount of moisture, As'indicated in FIGURE 6 of the "drawings, the periphery of the blade holder 49 and the In accordance with the patent statutes, I have, de-

roller, and in which said scribed the principles of construction and operation of 1 my improvement in score moistening device, and while I have endeavored to set forth the best embodiment thereof, I desire to have it understood that changes may bemade within the scope of the following claims with- V out departing from the'spirit of my invention.

I I claim: l i I 1. A-score'moistening apparatus for use in combination with a sheet folding apparatus, the apparatus, a frame, a

pair of parallel shafts supportedby the frame, means for conveyingsheet between said shafts, and score rollers, on said sh'afts-engageable with the-sheets to, score the same,

I the 'rnoisteningapparatus including:

V (a) ahollowhandle, V

(b), a brush projecting from an end of said hollow handle and capable of being mounted by liquid within said handle, '(c) meanszad-apted for connection with said frame to support said bristles in contact with the surface of oneof said scoring rollers, and (d), means connected to said brush handle to supply liquid thereto, I f I (e) said brushinclu'ding a series of bristles, (f) means-encircling the bristles intermediate the ends thereof and including spaces between the bristles through which water may flow, and 1(g)vtmeans detachably securing said encircling means .to an end of said handle. 2. The structure of claim 1 and in which said bristles are spread apart to a greater extent. within said handle than at the opposite endithereof.

3. The structure of claim 2 and in which said score rollers'include a grooved roller and a peripherally flanged bristles engage the surface of the grooved roller. I I A References Cited by-the Examiner UNITED STATES PATENTS 779,503 1/05 Robbins; 15-5a2 823,850 7 6/06 David-s'on et al. 9-358 1,089,402, 3/14' Downing 93-58.-1 1 1,492,873; "5/24,,Watkin 15528 X 1,693,329 11/28 Astley; 1,693,330 t11/28 Astley. g 2,475,868 7/49 Anderson; 93 58..1 2,895,553 7/59. De Gelleke. 83-169X FRANK E. BAILEY, Primary Examiner, 

1. A SCORE MOISTENING APPARATUS FOR USE IN COMBINATION WITH A SHEET FOLDING APPARATUS, THE APPARATUS, A FRAME, A PAIR OF PARALLEL SHAFTS SUPPORTED BY THE FRAME, MEANS FOR CONVEYING SHEET BETWEEN SAID SHAFTS, AND SCORE ROLLERS ON SAID SHAFTS ENGAGEABLE WITH THE SHEETS TO SCORE THE SAME, THE MOISTENING APPARATUS INCLUDING: (A) A HOLLOW HANDLE, (B) A BRUSH PROJECTING FROM AN END OF SAID HOLLOW HANDLE AND CAPABLE OF BEING MOUNTED BY LIQUID WITHIN SAID HANDLE, (C) MEANS ADAPTED FOR CONNECTING WITH SAID FRAME TO SUPPORT SAID BRISTLES IN CONTACT WITH THE SURFACE OF ONE OF SAID SCORING ROLLERS, AND (D) MEANS CONNECTED TO SAID BRUSH HANDLE TO SUPPLY LIQUID THERETO, (E) SAID BRUSH INCLUDING A SERIES OF BRISTLES, (F) MEANS ENCIRCLING THE BRISTLES INTERMEDIATE THE ENDS THEREOF AND INCLUDING SPAFES BETWEEN THE BRISTLES THROUGH WHICH WATER MAY FLOW, AND (G) MEANS DETACHABLY SECURING SAID ENCIRCLING MEANS TO AN END OF SAID HANDLE. 